W05 WHITE EXHAUST FUMES - Alfa - 147 - eLearn

3022756 - W05 WHITE EXHAUST FUMES

There is a large amount of exhaust fumes, with light coloured smoke

0	PRELIMINARY CHECKS	All OK	Problems met	Operation
		Results of the tests
	Preliminarily check: no water or other fluids in the fuel tank engine oil level	Continue to Step 1	Presence of dirt in the fuel tank	Clean the fuel tank
		Continue to Step 1	Level too high	Top up the engine oil level
1	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Connect the diagnostic equipment (Examiner or other instruments) to the diagnostic socketCheck that there are no faults in the engine management control unit	Continue to Step 2	An error is detected in the control unit	Continue following the instructions for the diagnostic equipment
		Continue to Step 2	Lack of dialogue with the control unit	Restore the connection between engine management control unit and diagnostic connector See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT
2	CHECK ON CYLINDER COMPRESSION	All OK	Problems met	Operation
	Carry out the cylinder compression test	Continue to Step 3	Cylinder compression insufficient	Continue to Step 4
3	CHECKING CYLINDER HEAD GASKET AND VALVE SEALS	All OK	Problems met	Operation
	Check: that the cylinder head tightening is correct that the gasket is not leaking that the valve seals are not leaking	Continue to Step 5	Cylinder head tightening not correct	Proceed with removal/refitting of the cylinder head and tighten it correctly Op. 1016C11
			Gasket damaged	Replace the cylinder head gasket Op. 1016C11
			Oil seals leaking	Replace valve oil seals Op. 1016E10
4	CHECKING CAUSE OF INSUFFICIENT COMPRESSION	All OK	Problems met	Operation
	With the cylinder head removed, check: valve seal condition of cylinders/piston rings	Continue to Step 5	Insufficient valve seal	Overhaul the cylinder head
		Continue to Step 5	Wear on cylinders/piston rings outside tolerance	Restore correct operating clearances
5	CHECKING BLOW-BY CIRCUIT	All OK	Problems met	Operation
	Check the condition of the blow-by gases intake circuit. In particular, check that there are no obstructions in the separator or in the pipes	Continue to Step 6	Fault in the pipe from separator to intake	Restore the correct operation of the circuit: if necessary, replace the pipes
		Continue to Step 6	Fault in separator (rocker cover)	Restore the correct operation of the circuit; if necessary replace the rocker cover
6	CHECKING SEAL OF TURBOCHARGER GASKETS	All OK	Problems met	Operation
	Check that there are no engine oil leaks from turbocharger blade spindle	Continue to Step 7	Insufficient gasket seal	Replace turbocharger
7	CORRECT OPERATION CHECK	All OK	Problems met	Operation
	Check that the fault is no longer present		Fault persists	Search for the fault starting from another symptom'